aidan.brooks@LIGO.ORG - posted 11:30, Tuesday 22 October 2019 (52622)
ETMY HWS saturated by ALS laser
The ETMY HWS is now saturated by the ALS laser leakage into the HWS path. It's been like this since the ALS laser was energized last Friday (see attached plot of mean value of the peak 100 pixels on the HWS). We might be able to notch out the 532nm ALS laser using a notch filter.
Images attached to this report
